sqrt(-44)
This has a perfect square inside the square root
4 is a perfect square
sqrt(-1 * 4 * 11)
sqrt(-1) sqrt(4) sqrt(11)
We know the square root of 4 is 2
2 sqrt(11) sqrt(-1)
2 sqrt(11) i
sqrt(-30)
sqrt( 6*5* -1)
There is no perfect square for 30
Another example with a perfect square inside would be
sqrt(-54)
sqrt( -1 * 27*2)
sqrt( -1 * 9 *6)
9 is a perfect square
sqrt( -1) * sqrt(9) sqrt(6)
3 i sqrt(6)
Try to break down larger numbers and see if there is a perfect square that is a factor